Meta: Fix publish-pr.yml

Install dependencies

Author: gibson042

.github/workflows/publish-pr.yml

@@ -17,6 +17,10 @@ jobs:
       }}
     steps:
     - uses: actions/checkout@v4
+    - name: '[node LTS] npm install'
+      uses: ljharb/actions/node/install@main
+      with:
+        node-version: lts/*
     - name: Print event info
       uses: actions/github-script@v7
       with: